Package mondrian.rolap

Interface RolapCubeLevel.LevelReader

All Known Implementing Classes:

RolapCubeLevel.AllLevelReaderImpl, RolapCubeLevel.NullLevelReader, RolapCubeLevel.ParentChildLevelReaderImpl, RolapCubeLevel.RegularLevelReader

Enclosing class:

RolapCubeLevel

static interface RolapCubeLevel.LevelReader

Encapsulation of the difference between levels in terms of how constraints are generated. There are implementations for 'all' levels, the 'null' level, parent-child levels and regular levels.

Method Summary

Modifier and Type	Method	Description
void	constrainRegion(StarColumnPredicate predicate, RolapCube baseCube, RolapCacheRegion cacheRegion)	Adds constraints to a cache region for a member of this level.
boolean	constrainRequest(RolapCubeMember member, RolapCube baseCube, CellRequest request)	Adds constraints to a cell request for a member of this level.

Method Detail

constrainRequest

boolean constrainRequest(RolapCubeMember member,
                         RolapCube baseCube,
                         CellRequest request)

Adds constraints to a cell request for a member of this level.

Parameters:

member - Member to be constrained

baseCube - base cube if virtual level

request - Request to be constrained

Returns:

true if request is unsatisfiable (e.g. if the member is the null member)

constrainRegion

void constrainRegion(StarColumnPredicate predicate,
                     RolapCube baseCube,
                     RolapCacheRegion cacheRegion)

Adds constraints to a cache region for a member of this level.

Parameters:

predicate - Predicate

baseCube - base cube if virtual level

cacheRegion - Cache region to be constrained